Removal of user "Administrator"


Is it safe to remove the standard Administrator user?

Administration is delegated to other users. I would like to remove the standard user.

UCS (backup) not resolving internal DNS

At least when using Samba 4 it might be not possible to remove the default Administrator.
Usual recommendation in standard Windows environment is to rename this account and define a strong password which is not used during standard operation and stored in a safe place.